一定要的英文：
must

参考例句：
  • We must completely change the current status of overstaffed organizations and superfluous staff.
    我们一定要彻底改变这种机构臃肿、人浮于事的现况。
  • Your prescription is ready. Be sure to take them after meals.
    你的药配好了。一定要饭后服用。
  • One main idea possessed her; she must get away from home.
    她只有一个想法;她一定要离家出走。
  • In order to oppose imperialist aggression,we must build a powerful navy.
    为了反帝国主义侵略，我们一定要建立强大的海军。
  • I really dont see why you should keep a diary at all
    我真不明白你为什么一定要保留一本日记。
  • She exacted an apology from the tradesman for having questioned her honesty.
    她一定要那个商人向她道歉，因为他怀疑她偷东西。
  • Always proofread completed letters very carefully.Consult dictionary when necessary or in doubt.
    完成的书信一定要很小心地校对，有必要或怀疑时查典。
  • We must build a centralized, unified Party and make a clean sweep of all unprincipled factional struggles
    我们一定要建设一个集中的统一的党，一切无原则的派别斗争，都要清
  • Set aside a day for the mustsee spectacle of Milford Sound in the heart of NZs unspoiled and aweinspiring fjordland
    一定要留一天给不能错过的美景米尔福德峡湾,它位于新西兰腹地纯自然而壮观的峡湾地区。
  • Make sure you get there in time.
    一定要准时到达那里。
must是什么意思：
v. 必须，必然要
n. 必须做的事，必不可少的事物
adj. 不可或缺的，必须的
  • We must act, we must act quickly.
    我们必须行动，立即行动。
  • You must synthesise various opinions.
    你必须综合各方面的意见。
  • You must not relax your efforts.
    你不可以松懈你的努力。
  • You must keep calm in an emergency.
    在紧急关头要保持镇静。
  • You must give way to betters.
    你必须让长者先行。

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